42346731 has 24 divisors (see below), whose sum is σ = 65985024. Its totient is φ = 24086160.

The previous prime is 42346729. The next prime is 42346739. The reversal of 42346731 is 13764324.

It is not a de Polignac number, because 42346731 - 2¹ = 42346729 is a prime.

It is a super-2 number, since 2×42346731² = 3586491252772722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (12096) is a multiple of the sum of its prime divisors (1344).

It is not an unprimeable number, because it can be changed into a prime (42346739) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39306 + ... + 40368.

It is an arithmetic number, because the mean of its divisors is an integer number (2749376).

Almost surely, 2^42346731 is an apocalyptic number.

42346731 is a deficient number, since it is larger than the sum of its proper divisors (23638293).

42346731 is a wasteful number, since it uses less digits than its factorization.

42346731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1344 counting only the distinct ones).

The product of its digits is 12096, while the sum is 30.

The square root of 42346731 is about 6507.4365920845. The cubic root of 42346731 is about 348.5565888427.

The spelling of 42346731 in words is "forty-two million, three hundred forty-six thousand, seven hundred thirty-one".