40989772 has 12 divisors (see below), whose sum is σ = 74851056. Its totient is φ = 19603760.

The previous prime is 40989763. The next prime is 40989779. The reversal of 40989772 is 27798904.

It is a super-2 number, since 2×40989772² = 3360322817223968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (40989779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222679 + ... + 222862.

It is an arithmetic number, because the mean of its divisors is an integer number (6237588).

Almost surely, 2^40989772 is an apocalyptic number.

It is an amenable number.

40989772 is a deficient number, since it is larger than the sum of its proper divisors (33861284).

40989772 is a wasteful number, since it uses less digits than its factorization.

40989772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445568 (or 445566 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 40989772 is about 6402.3255149984. The cubic root of 40989772 is about 344.7930481854.

The spelling of 40989772 in words is "forty million, nine hundred eighty-nine thousand, seven hundred seventy-two".