42802440 has 64 divisors (see below), whose sum is σ = 135172800. Its totient is φ = 10812672.

The previous prime is 42802427. The next prime is 42802453. The reversal of 42802440 is 4420824.

It is an interprime number because it is at equal distance from previous prime (42802427) and next prime (42802453).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 42802440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7107 + ... + 11666.

It is an arithmetic number, because the mean of its divisors is an integer number (2112075).

Almost surely, 2^42802440 is an apocalyptic number.

42802440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42802440 is an abundant number, since it is smaller than the sum of its proper divisors (92370360).

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

42802440 is a wasteful number, since it uses less digits than its factorization.

42802440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18806 (or 18802 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 42802440 is about 6542.3573733021. The cubic root of 42802440 is about 349.8024463371.

The spelling of 42802440 in words is "forty-two million, eight hundred two thousand, four hundred forty".