1420007420 has 24 divisors (see below), whose sum is σ = 3211401984. Its totient is φ = 524310336.

The previous prime is 1420007377. The next prime is 1420007437. The reversal of 1420007420 is 247000241.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1420007392 and 1420007401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2730524 + ... + 2731043.

It is an arithmetic number, because the mean of its divisors is an integer number (133808416).

Almost surely, 2^1420007420 is an apocalyptic number.

1420007420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420007420 is an abundant number, since it is smaller than the sum of its proper divisors (1791394564).

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

1420007420 is a wasteful number, since it uses less digits than its factorization.

1420007420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461589 (or 5461587 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 1420007420 is about 37682.9858158825. The cubic root of 1420007420 is about 1123.9928223602.

Adding to 1420007420 its reverse (247000241), we get a palindrome (1667007661).

The spelling of 1420007420 in words is "one billion, four hundred twenty million, seven thousand, four hundred twenty".