1662625146 has 32 divisors (see below), whose sum is σ = 4092617088. Its totient is φ = 438494400.

The previous prime is 1662625123. The next prime is 1662625147. The reversal of 1662625146 is 6415262661.

It is a super-2 number, since 2×1662625146² = 5528644752223042632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1662625147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1522005 + ... + 1523096.

It is an arithmetic number, because the mean of its divisors is an integer number (127894284).

Almost surely, 2^1662625146 is an apocalyptic number.

1662625146 is an abundant number, since it is smaller than the sum of its proper divisors (2429991942).

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

1662625146 is a wasteful number, since it uses less digits than its factorization.

1662625146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045126.

The product of its digits is 103680, while the sum is 39.

The square root of 1662625146 is about 40775.3006855866. The cubic root of 1662625146 is about 1184.6719752928.

The spelling of 1662625146 in words is "one billion, six hundred sixty-two million, six hundred twenty-five thousand, one hundred forty-six".