42772398 has 32 divisors (see below), whose sum is σ = 87749376. Its totient is φ = 13894848.

The previous prime is 42772381. The next prime is 42772399. The reversal of 42772398 is 89327724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42772399) 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, 40890 + ... + 41922.

It is an arithmetic number, because the mean of its divisors is an integer number (2742168).

Almost surely, 2^42772398 is an apocalyptic number.

42772398 is an abundant number, since it is smaller than the sum of its proper divisors (44976978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42772398 is a wasteful number, since it uses less digits than its factorization.

42772398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208.

The product of its digits is 169344, while the sum is 42.

The square root of 42772398 is about 6540.0610088897. The cubic root of 42772398 is about 349.7205878833.

The spelling of 42772398 in words is "forty-two million, seven hundred seventy-two thousand, three hundred ninety-eight".