1949521364 has 48 divisors (see below), whose sum is σ = 3937248000. Its totient is φ = 827360256.

The previous prime is 1949521363. The next prime is 1949521367. The reversal of 1949521364 is 4631259491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949521361) 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, 2098052 + ... + 2098980.

It is an arithmetic number, because the mean of its divisors is an integer number (82026000).

Almost surely, 2^1949521364 is an apocalyptic number.

1949521364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1949521364 is an abundant number, since it is smaller than the sum of its proper divisors (1987726636).

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

1949521364 is a wasteful number, since it uses less digits than its factorization.

1949521364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592 (or 1590 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 1949521364 is about 44153.3845135342. The cubic root of 1949521364 is about 1249.2307510219.

The spelling of 1949521364 in words is "one billion, nine hundred forty-nine million, five hundred twenty-one thousand, three hundred sixty-four".