842437480 has 32 divisors (see below), whose sum is σ = 1896670440. Its totient is φ = 336764160.

The previous prime is 842437469. The next prime is 842437481. The reversal of 842437480 is 84734248.

It can be written as a sum of positive squares in 4 ways, for example, as 625700196 + 216737284 = 25014^2 + 14722^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (842437481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68782 + ... + 80098.

Almost surely, 2^842437480 is an apocalyptic number.

It is an amenable number.

842437480 is an abundant number, since it is smaller than the sum of its proper divisors (1054232960).

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

842437480 is a wasteful number, since it uses less digits than its factorization.

842437480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13189 (or 13185 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 40.

The square root of 842437480 is about 29024.7735563949. The cubic root of 842437480 is about 944.4505563721.

The spelling of 842437480 in words is "eight hundred forty-two million, four hundred thirty-seven thousand, four hundred eighty".