46166440 has 48 divisors (see below), whose sum is σ = 107422740. Its totient is φ = 17856000.

The previous prime is 46166431. The next prime is 46166443. The reversal of 46166440 is 4466164.

It can be written as a sum of positive squares in 2 ways, for example, as 37675044 + 8491396 = 6138^2 + 2914^2 .

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (46166443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37840 + ... + 39040.

Almost surely, 2^46166440 is an apocalyptic number.

46166440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46166440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53711370).

46166440 is an abundant number, since it is smaller than the sum of its proper divisors (61256300).

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

46166440 is a wasteful number, since it uses less digits than its factorization.

46166440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 46166440 is about 6794.5890236276. The cubic root of 46166440 is about 358.7364136704.

The spelling of 46166440 in words is "forty-six million, one hundred sixty-six thousand, four hundred forty".