40621754 has 4 divisors (see below), whose sum is σ = 60932634. Its totient is φ = 20310876.

The previous prime is 40621751. The next prime is 40621759. The reversal of 40621754 is 45712604.

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., 39400729 + 1221025 = 6277^2 + 1105^2 .

It is not an unprimeable number, because it can be changed into a prime (40621751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155437 + ... + 10155440.

Almost surely, 2^40621754 is an apocalyptic number.

40621754 is a deficient number, since it is larger than the sum of its proper divisors (20310880).

40621754 is a wasteful number, since it uses less digits than its factorization.

40621754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20310879.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 40621754 is about 6373.5197497144. The cubic root of 40621754 is about 343.7580606815.

The spelling of 40621754 in words is "forty million, six hundred twenty-one thousand, seven hundred fifty-four".