1540089702 has 48 divisors (see below), whose sum is σ = 3500033472. Its totient is φ = 488851200.

The previous prime is 1540089701. The next prime is 1540089737. The reversal of 1540089702 is 2079800451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540089701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6702 + ... + 55902.

It is an arithmetic number, because the mean of its divisors is an integer number (72917364).

Almost surely, 2^1540089702 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1540089702, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1750016736).

1540089702 is an abundant number, since it is smaller than the sum of its proper divisors (1959943770).

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

1540089702 is a wasteful number, since it uses less digits than its factorization.

1540089702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49293 (or 49290 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1540089702 is about 39243.9766333637. The cubic root of 1540089702 is about 1154.8227714798.

The spelling of 1540089702 in words is "one billion, five hundred forty million, eighty-nine thousand, seven hundred two".