1453423040 has 56 divisors (see below), whose sum is σ = 3504834240. Its totient is φ = 574000128.

The previous prime is 1453423001. The next prime is 1453423079. The reversal of 1453423040 is 403243541.

It is an interprime number because it is at equal distance from previous prime (1453423001) and next prime (1453423079).

It is a super-2 number, since 2×1453423040² = 4224877066405683200, which contains 22 as substring.

It is a congruent number.

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, 3467 + ... + 54026.

Almost surely, 2^1453423040 is an apocalyptic number.

1453423040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1453423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1752417120).

1453423040 is an abundant number, since it is smaller than the sum of its proper divisors (2051411200).

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

1453423040 is an equidigital number, since it uses as much as digits as its factorization.

1453423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57589 (or 57579 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 1453423040 is about 38123.7857511554. The cubic root of 1453423040 is about 1132.7411562261.

Adding to 1453423040 its reverse (403243541), we get a palindrome (1856666581).

The spelling of 1453423040 in words is "one billion, four hundred fifty-three million, four hundred twenty-three thousand, forty".