1465945890 has 16 divisors (see below), whose sum is σ = 3518270208. Its totient is φ = 390918896.

The previous prime is 1465945889. The next prime is 1465945951. The reversal of 1465945890 is 985495641.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24432402 + ... + 24432461.

It is an arithmetic number, because the mean of its divisors is an integer number (219891888).

Almost surely, 2^1465945890 is an apocalyptic number.

1465945890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1465945890 is an abundant number, since it is smaller than the sum of its proper divisors (2052324318).

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

1465945890 is a wasteful number, since it uses less digits than its factorization.

1465945890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48864873.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The square root of 1465945890 is about 38287.6728203739. The cubic root of 1465945890 is about 1135.9851305871.

The spelling of 1465945890 in words is "one billion, four hundred sixty-five million, nine hundred forty-five thousand, eight hundred ninety".