46490220 has 192 divisors, whose sum is σ = 169344000. Its totient is φ = 10584000.

The previous prime is 46490177. The next prime is 46490231. The reversal of 46490220 is 2209464.

It is a super-2 number, since 2×46490220² = 4322681111296800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185095 + ... + 185345.

It is an arithmetic number, because the mean of its divisors is an integer number (882000).

Almost surely, 2^46490220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46490220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84672000).

46490220 is an abundant number, since it is smaller than the sum of its proper divisors (122853780).

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

46490220 is a wasteful number, since it uses less digits than its factorization.

46490220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 46490220 is about 6818.3737063907. The cubic root of 46490220 is about 359.5731050910.

Adding to 46490220 its reverse (2209464), we get a palindrome (48699684).

The spelling of 46490220 in words is "forty-six million, four hundred ninety thousand, two hundred twenty".