1620744314 has 16 divisors (see below), whose sum is σ = 2799631296. Its totient is φ = 689301600.

The previous prime is 1620744313. The next prime is 1620744341. The reversal of 1620744314 is 4134470261.

It is not an unprimeable number, because it can be changed into a prime (1620744313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440027 + ... + 443694.

It is an arithmetic number, because the mean of its divisors is an integer number (174976956).

Almost surely, 2^1620744314 is an apocalyptic number.

1620744314 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1620744314 is a deficient number, since it is larger than the sum of its proper divisors (1178886982).

1620744314 is a wasteful number, since it uses less digits than its factorization.

1620744314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883861.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 1620744314 is about 40258.4688481815. The cubic root of 1620744314 is about 1174.6401346125.

The spelling of 1620744314 in words is "one billion, six hundred twenty million, seven hundred forty-four thousand, three hundred fourteen".