1235397490 has 16 divisors (see below), whose sum is σ = 2226183552. Its totient is φ = 493610544.

The previous prime is 1235397487. The next prime is 1235397503. The reversal of 1235397490 is 947935321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59034 + ... + 77173.

It is an arithmetic number, because the mean of its divisors is an integer number (139136472).

Almost surely, 2^1235397490 is an apocalyptic number.

1235397490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1235397490 is a deficient number, since it is larger than the sum of its proper divisors (990786062).

1235397490 is a wasteful number, since it uses less digits than its factorization.

1235397490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137121.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 1235397490 is about 35148.2217188864. The cubic root of 1235397490 is about 1073.0062168374.

The spelling of 1235397490 in words is "one billion, two hundred thirty-five million, three hundred ninety-seven thousand, four hundred ninety".