1354993140 has 48 divisors (see below), whose sum is σ = 3800478528. Its totient is φ = 360712704.

The previous prime is 1354993139. The next prime is 1354993147. The reversal of 1354993140 is 413994531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354993147) 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, 16539 + ... + 54621.

It is an arithmetic number, because the mean of its divisors is an integer number (79176636).

Almost surely, 2^1354993140 is an apocalyptic number.

1354993140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1354993140 is an abundant number, since it is smaller than the sum of its proper divisors (2445485388).

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

1354993140 is a wasteful number, since it uses less digits than its factorization.

1354993140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38688 (or 38686 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 1354993140 is about 36810.2314581150. The cubic root of 1354993140 is about 1106.5703572177.

The spelling of 1354993140 in words is "one billion, three hundred fifty-four million, nine hundred ninety-three thousand, one hundred forty".