42477591 has 16 divisors (see below), whose sum is σ = 62644064. Its totient is φ = 25432704.

The previous prime is 42477587. The next prime is 42477629. The reversal of 42477591 is 19577424.

It is not a de Polignac number, because 42477591 - 2² = 42477587 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42477511) 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, 13276 + ... + 16161.

It is an arithmetic number, because the mean of its divisors is an integer number (3915254).

Almost surely, 2^42477591 is an apocalyptic number.

42477591 is a deficient number, since it is larger than the sum of its proper divisors (20166473).

42477591 is a wasteful number, since it uses less digits than its factorization.

42477591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29490.

The product of its digits is 70560, while the sum is 39.

The square root of 42477591 is about 6517.4834867455. The cubic root of 42477591 is about 348.9152565294.

The spelling of 42477591 in words is "forty-two million, four hundred seventy-seven thousand, five hundred ninety-one".