1420433040 has 160 divisors (see below), whose sum is σ = 4768194816. Its totient is φ = 347719680.

The previous prime is 1420432999. The next prime is 1420433081. The reversal of 1420433040 is 403340241.

It is an interprime number because it is at equal distance from previous prime (1420432999) and next prime (1420433081).

It is a super-2 number, since 2×1420433040² = 4035260042247283200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1420432998 and 1420433016.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 613485 + ... + 615795.

Almost surely, 2^1420433040 is an apocalyptic number.

1420433040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420433040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2384097408).

1420433040 is an abundant number, since it is smaller than the sum of its proper divisors (3347761776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420433040 is a wasteful number, since it uses less digits than its factorization.

1420433040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537 (or 2531 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1420433040 is about 37688.6327690459. The cubic root of 1420433040 is about 1124.1051095754.

Adding to 1420433040 its reverse (403340241), we get a palindrome (1823773281).

The spelling of 1420433040 in words is "one billion, four hundred twenty million, four hundred thirty-three thousand, forty".