42702417 has 16 divisors (see below), whose sum is σ = 63364480. Its totient is φ = 28422576.

The previous prime is 42702409. The next prime is 42702433. The reversal of 42702417 is 71420724.

It is a happy number.

It is not a de Polignac number, because 42702417 - 2³ = 42702409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42702437) 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, 28788 + ... + 30234.

It is an arithmetic number, because the mean of its divisors is an integer number (3960280).

Almost surely, 2^42702417 is an apocalyptic number.

It is an amenable number.

42702417 is a deficient number, since it is larger than the sum of its proper divisors (20662063).

42702417 is a wasteful number, since it uses less digits than its factorization.

42702417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549 (or 2543 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 42702417 is about 6534.7086392585. The cubic root of 42702417 is about 349.5297548762.

The spelling of 42702417 in words is "forty-two million, seven hundred two thousand, four hundred seventeen".