1448779290 has 32 divisors (see below), whose sum is σ = 3973795200. Its totient is φ = 331149504.

The previous prime is 1448779271. The next prime is 1448779307. The reversal of 1448779290 is 929778441.

It is a super-2 number, since 2×1448779290² = 4197922862265808200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3449265 + ... + 3449684.

It is an arithmetic number, because the mean of its divisors is an integer number (124181100).

Almost surely, 2^1448779290 is an apocalyptic number.

1448779290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1448779290 is an abundant number, since it is smaller than the sum of its proper divisors (2525015910).

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

1448779290 is a wasteful number, since it uses less digits than its factorization.

1448779290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6898966.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 1448779290 is about 38062.8334468153. The cubic root of 1448779290 is about 1131.5334833236.

The spelling of 1448779290 in words is "one billion, four hundred forty-eight million, seven hundred seventy-nine thousand, two hundred ninety".