42377031 has 24 divisors (see below), whose sum is σ = 64157184. Its totient is φ = 26920080.

The previous prime is 42377021. The next prime is 42377089. The reversal of 42377031 is 13077324.

It is not a de Polignac number, because 42377031 - 2⁶ = 42376967 is a prime.

It is a super-2 number, since 2×42377031² = 3591625512749922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42376986 and 42377004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42377021) 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, 17560 + ... + 19826.

It is an arithmetic number, because the mean of its divisors is an integer number (2673216).

Almost surely, 2^42377031 is an apocalyptic number.

42377031 is a deficient number, since it is larger than the sum of its proper divisors (21780153).

42377031 is a wasteful number, since it uses less digits than its factorization.

42377031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371 (or 2368 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 42377031 is about 6509.7642814468. The cubic root of 42377031 is about 348.6397022768.

It can be divided in two parts, 423770 and 31, that added together give a square (423801 = 651²).

The spelling of 42377031 in words is "forty-two million, three hundred seventy-seven thousand, thirty-one".