46406440 has 16 divisors (see below), whose sum is σ = 104414580. Its totient is φ = 18562560.

The previous prime is 46406431. The next prime is 46406441. The reversal of 46406440 is 4460464.

It can be written as a sum of positive squares in 2 ways, for example, as 46158436 + 248004 = 6794^2 + 498^2 .

It is a junction number, because it is equal to n+sod(n) for n = 46406399 and 46406408.

It is not an unprimeable number, because it can be changed into a prime (46406441) 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, 580041 + ... + 580120.

Almost surely, 2^46406440 is an apocalyptic number.

46406440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46406440 is an abundant number, since it is smaller than the sum of its proper divisors (58008140).

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

46406440 is a wasteful number, since it uses less digits than its factorization.

46406440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160172 (or 1160168 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 46406440 is about 6812.2272422461. The cubic root of 46406440 is about 359.3569797139.

The spelling of 46406440 in words is "forty-six million, four hundred six thousand, four hundred forty".