46240640 has 32 divisors (see below), whose sum is σ = 110545560. Its totient is φ = 18496000.

The previous prime is 46240637. The next prime is 46240657. The reversal of 46240640 is 4604264.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35486 + ... + 36765.

Almost surely, 2^46240640 is an apocalyptic number.

46240640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46240640 is an abundant number, since it is smaller than the sum of its proper divisors (64304920).

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

46240640 is an equidigital number, since it uses as much as digits as its factorization.

46240640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72270 (or 72258 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 46240640 is about 6800.0470586607. The cubic root of 46240640 is about 358.9285012134.

It can be divided in two parts, 46240 and 640, that multiplied together give a square (29593600 = 5440²).

The spelling of 46240640 in words is "forty-six million, two hundred forty thousand, six hundred forty".