1616351740 has 24 divisors (see below), whose sum is σ = 3429335952. Its totient is φ = 639874560.

The previous prime is 1616351729. The next prime is 1616351747. The reversal of 1616351740 is 471536161.

It is a super-2 number, since 2×1616351740² = 5225185894802055200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616351696 and 1616351705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616351747) 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, 414646 + ... + 418525.

It is an arithmetic number, because the mean of its divisors is an integer number (142888998).

Almost surely, 2^1616351740 is an apocalyptic number.

1616351740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616351740 is an abundant number, since it is smaller than the sum of its proper divisors (1812984212).

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

1616351740 is a wasteful number, since it uses less digits than its factorization.

1616351740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833277 (or 833275 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1616351740 is about 40203.8771762127. The cubic root of 1616351740 is about 1173.5779966793.

The spelling of 1616351740 in words is "one billion, six hundred sixteen million, three hundred fifty-one thousand, seven hundred forty".