40420977 has 8 divisors (see below), whose sum is σ = 53925120. Its totient is φ = 26932080.

The previous prime is 40420949. The next prime is 40420997. The reversal of 40420977 is 77902404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40420977 - 2¹² = 40416881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40420937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5952 + ... + 10782.

It is an arithmetic number, because the mean of its divisors is an integer number (6740640).

Almost surely, 2^40420977 is an apocalyptic number.

It is an amenable number.

40420977 is a deficient number, since it is larger than the sum of its proper divisors (13504143).

40420977 is a wasteful number, since it uses less digits than its factorization.

40420977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7623.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 40420977 is about 6357.7493659313. The cubic root of 40420977 is about 343.1907723922.

The spelling of 40420977 in words is "forty million, four hundred twenty thousand, nine hundred seventy-seven".