42703440 has 80 divisors (see below), whose sum is σ = 142574208. Its totient is φ = 10510848.

The previous prime is 42703421. The next prime is 42703459. The reversal of 42703440 is 4430724.

It is an interprime number because it is at equal distance from previous prime (42703421) and next prime (42703459).

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a zygodrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 42703440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3724 + ... + 9963.

Almost surely, 2^42703440 is an apocalyptic number.

42703440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42703440 is an abundant number, since it is smaller than the sum of its proper divisors (99870768).

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

42703440 is a wasteful number, since it uses less digits than its factorization.

42703440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13716 (or 13710 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 42703440 is about 6534.7869131288. The cubic root of 42703440 is about 349.5325460225.

The spelling of 42703440 in words is "forty-two million, seven hundred three thousand, four hundred forty".