1421032040 has 64 divisors (see below), whose sum is σ = 3563611200. Its totient is φ = 506815488.

The previous prime is 1421032007. The next prime is 1421032049. The reversal of 1421032040 is 402301241.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1421032049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42074 + ... + 67913.

It is an arithmetic number, because the mean of its divisors is an integer number (55681425).

Almost surely, 2^1421032040 is an apocalyptic number.

1421032040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421032040 is an abundant number, since it is smaller than the sum of its proper divisors (2142579160).

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

1421032040 is a wasteful number, since it uses less digits than its factorization.

1421032040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110034 (or 110030 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1421032040 is about 37696.5786245914. The cubic root of 1421032040 is about 1124.2630999709.

Adding to 1421032040 its reverse (402301241), we get a palindrome (1823333281).

The spelling of 1421032040 in words is "one billion, four hundred twenty-one million, thirty-two thousand, forty".