1616293340 has 48 divisors (see below), whose sum is σ = 3473414784. Its totient is φ = 631488000.

The previous prime is 1616293297. The next prime is 1616293351. The reversal of 1616293340 is 433926161.

It is a happy number.

It is a super-2 number, since 2×1616293340² = 5224808321856711200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616293340.

It is a congruent number.

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, 563510 + ... + 566370.

It is an arithmetic number, because the mean of its divisors is an integer number (72362808).

Almost surely, 2^1616293340 is an apocalyptic number.

1616293340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616293340 is an abundant number, since it is smaller than the sum of its proper divisors (1857121444).

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

1616293340 is a wasteful number, since it uses less digits than its factorization.

1616293340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518 (or 3516 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 1616293340 is about 40203.1508715424. The cubic root of 1616293340 is about 1173.5638624248.

The spelling of 1616293340 in words is "one billion, six hundred sixteen million, two hundred ninety-three thousand, three hundred forty".