613749630 has 32 divisors (see below), whose sum is σ = 1586307744. Its totient is φ = 151076736.

The previous prime is 613749611. The next prime is 613749637. The reversal of 613749630 is 36947316.

613749630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613749637) 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, 786469 + ... + 787248.

It is an arithmetic number, because the mean of its divisors is an integer number (49572117).

Almost surely, 2^613749630 is an apocalyptic number.

613749630 is an abundant number, since it is smaller than the sum of its proper divisors (972558114).

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

613749630 is a wasteful number, since it uses less digits than its factorization.

613749630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573740.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 613749630 is about 24773.9708161611. The cubic root of 613749630 is about 849.8267836195.

It can be divided in two parts, 61 and 3749630, that added together give a triangular number (3749691 = T₂₇₃₈).

The spelling of 613749630 in words is "six hundred thirteen million, seven hundred forty-nine thousand, six hundred thirty".