40149774 has 96 divisors (see below), whose sum is σ = 108226560. Its totient is φ = 10497600.

The previous prime is 40149763. The next prime is 40149799. The reversal of 40149774 is 47794104.

It is a super-2 number, since 2×40149774² = 3224008704502152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73944 + ... + 74484.

It is an arithmetic number, because the mean of its divisors is an integer number (1127360).

Almost surely, 2^40149774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40149774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54113280).

40149774 is an abundant number, since it is smaller than the sum of its proper divisors (68076786).

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

40149774 is a wasteful number, since it uses less digits than its factorization.

40149774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 40149774 is about 6336.3849314889. The cubic root of 40149774 is about 342.4215075781.

The spelling of 40149774 in words is "forty million, one hundred forty-nine thousand, seven hundred seventy-four".