40772042 has 4 divisors (see below), whose sum is σ = 61158066. Its totient is φ = 20386020.

The previous prime is 40772027. The next prime is 40772051. The reversal of 40772042 is 24027704.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37810201 + 2961841 = 6149^2 + 1721^2 .

It is a super-3 number, since 3×40772042³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10193009 + ... + 10193012.

Almost surely, 2^40772042 is an apocalyptic number.

40772042 is a deficient number, since it is larger than the sum of its proper divisors (20386024).

40772042 is a wasteful number, since it uses less digits than its factorization.

40772042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20386023.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 40772042 is about 6385.2988966845. The cubic root of 40772042 is about 344.1814719897.

Adding to 40772042 its reverse (24027704), we get a palindrome (64799746).

The spelling of 40772042 in words is "forty million, seven hundred seventy-two thousand, forty-two".