42620403 has 16 divisors (see below), whose sum is σ = 67769856. Its totient is φ = 23295360.

The previous prime is 42620387. The next prime is 42620419. The reversal of 42620403 is 30402624.

It is an interprime number because it is at equal distance from previous prime (42620387) and next prime (42620419).

It is not a de Polignac number, because 42620403 - 2⁴ = 42620387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 42620403.

It is not an unprimeable number, because it can be changed into a prime (42620423) 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, 43638 + ... + 44603.

It is an arithmetic number, because the mean of its divisors is an integer number (4235616).

Almost surely, 2^42620403 is an apocalyptic number.

42620403 is a deficient number, since it is larger than the sum of its proper divisors (25149453).

42620403 is a wasteful number, since it uses less digits than its factorization.

42620403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88274.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 42620403 is about 6528.4303626523. The cubic root of 42620403 is about 349.3058432332.

The spelling of 42620403 in words is "forty-two million, six hundred twenty thousand, four hundred three".